Indian Society of Genetics & Plant Breeding

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Evaluation of pearl millet [Pennisetum glaucum (L.) R. Br.] for grain iron and zinc content in different agro climatic zones of India

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Micronutrient malnutrition, especially the paucity of iron
(Fe) and zinc (Zn) is posing a big threat to the world affecting
nearly 25% of worldwide population. Pearl millet is endowed
with huge amount of variability for micronutrients especially
for grain Fe and Zn content. Micronutrient enrichment in
pearl millet is possible by identifying stable genotypes for
high levels of micronutrients and utilising them in breeding
programme. In this context, a set of 40 pearl millet
genotypes along with one check, Dhanshakti (G30), were
evaluated at three different agro climatic zones during the
year 2014 for grain iron (Fe) and zinc (Zn) contents using
Atomic Absorption Spectrometry. The genotypes
contributed 58.3% and 52.8% of the total variation for grain
Fe and Zn content, respectively. The magnitude of variation
contributed by interaction component was also relatively
high (39.7% and 32.5% for grain Fe and Zn). Both AMMI
and GGE biplot analysis identified desirable genotypes;
PPMI 708 (G40), PPMI 1102 (G25) and PPMI 683 (G39) for
grain Fe content, whereas PPMI 708 (G40), PPMI 1116 (G24)
and PPMI 683 (G39) for grain Zn content. The Pearson
correlation coefficient for grain Fe and Zn content showed
that both traits are highly associated (r = 0.8, p <0.01) and
these traits did not associate significantly with grain yield.
Hence, there is possibility for simultaneous improvement
of both grain Fe and Zn content without compromising for
grain yield.
 

Keywords: Pearl millet, grain Fe and Zn content, GEI, AMMI analysis, GGE biplot

Info

Year: 2017
Volume: 77
Issue: 1
Article DOI: 10.5958/0975-6906.2017.00009.8
Print ISSN: 0019-5200
Online ISSN: 0975-6906

Authors

info_circle
C. Tara Satyavathi info_circle
M. C. Meena info_circle
S. Mukesh Sankar info_circle
C. Bharadwaj info_circle
Jayant Bhat info_circle
Omvir Singh info_circle
S. P. Singh info_circle

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